Investigation of ITS-90 Inconsistencies in Overlap Region of the Water-indium, Water-tin, and Water-zinc Sub-ranges

Trisna, Beni Adi; Suherlan,; Zaid, Ghufron

doi:10.1007/s12647-017-0218-4

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Several studies have been conducted to estimate the effects of SRIs caused by various subranges based on a number of SPRTs [4][5][6][7][8][9][10][11][12][13][14]. The water-zinc and water-aluminium subranges are the two widely used ones for SPRTs in ITS-90, and the SRIs caused by these subranges cannot usually be ignored because the overlapping range of 0.01…”

Section: Introductionmentioning

confidence: 99%

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 ^°C–961.78 ^°C

Sun¹,

Li²,

Hao³

et al. 2020

Metrologia

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The subrange inconsistency (SRI) of the International Temperature Scale of 1990 (ITS-90) arises from the use of different interpolating equations for the same standard platinum resistance thermometers (SPRTs), called Type 1 non-uniqueness, and is a significant component of the uncertainty in the realization of the scale. In order to eliminate the SRI, new interpolating equations were proposed for the subranges 0.01• C to 660.323 • C and 0.01 • C to 961.78 • C, in which the subrange to the zinc point (419.527 • C) was extended using two additional terms without any overlap. This study investigated 30 SPRTs calibrated over the temperature range of 0.01 • C-660.323 • C and 19 high-temperature SPRTs (HTSPRTs) calibrated over 0.01 • C-961.78 • C at the National Institute of Metrology (NIM ). The feasibility of the proposed equations were evaluated by comparing them with the equations defined in ITS-90 and calculating the propagation uncertainties. The results show that the differences between the defined interpolating equations in ITS-90 and the proposed interpolating equations are generally within ± 0.4 mK for temperature range of 419.527• C-961.78• C, which is close to or less than the SRIs between the water-zinc and water-aluminium subranges. The propagated uncertainties of the proposed equations were within reasonable limits. It is concluded that these new interpolating equations can be taken as equivalent to the ITS-90 interpolating equations with the SRI eliminated.

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Section: Introductionmentioning

confidence: 99%

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 ^°C–961.78 ^°C

Sun¹,

Li²,

Hao³

et al. 2020

Metrologia

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Development of Simple Method for Quality Testing of PT100 Sensors Due to Temperature Coefficient of Resistance Measurement

Prakosa

Purwowibowo

Larassati

2021

2021 International Symposium on Electronics and Smart Devices (ISESD)

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Investigation of ITS-90 Inconsistencies in Overlap Region of the Water-indium, Water-tin, and Water-zinc Sub-ranges

Cited by 2 publications

References 14 publications

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 ^°C–961.78 ^°C

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 ^°C–961.78 ^°C

Development of Simple Method for Quality Testing of PT100 Sensors Due to Temperature Coefficient of Resistance Measurement

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Investigation of ITS-90 Inconsistencies in Overlap Region of the Water-indium, Water-tin, and Water-zinc Sub-ranges

Cited by 2 publications

References 14 publications

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 °C–961.78 °C

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 °C–961.78 °C

Development of Simple Method for Quality Testing of PT100 Sensors Due to Temperature Coefficient of Resistance Measurement

Contact Info

Product

Resources

About

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 ^°C–961.78 ^°C

New interpolating equations of ITS-90 for SPRTs and HTSPRTs for the temperature range 419.527 ^°C–961.78 ^°C